Table 1. Improved chain convergence using Hessian-guided MCMC searches.

	Fraction of parameters that convergeda
MCMC stepsb	1 150 000	1 000 000	750 000	500 000	100 000	50 000
Hessian guidedc	78/78	77/78	73/78	70/78	40/78	21/78
Non-guidedd	65/78	62/78	55/78	50/78	24/78	12/78

^aAverage number of parameters for which convergence was achieved for a series of 10 MCMC walks after the indicated number of steps.

^bNumber of MCMC steps in a chain.

^cMCMC chains guided by the Hessian.

^dMCMC chains not guided by the Hessian.